Why can’t you call Xiaomi: a full analysis of the reasons and solutions

Have you noticed that friends, colleagues or relatives complain, "I can't get to your Xiaomi!" and you don't have missed calls? Or calls fail after a few seconds, POCO And Mi, regardless of model — from budget Redmi Note 12 to flagship Xiaomi 14 Ultra. 80% of cases are not to blame for hardware breakdowns, and software failures or incorrect settings.

In this article, we will analyze all possible reasons why your Xiaomi can not get a call – from the banal mode “Do not disturb” to complex problems with the use of the mobile phone. IMEI. You'll get step-by-step diagnostic instructions, checklists, and a table of common error solutions, and if the problem turns out to be hardware, you'll learn how to tell it apart from software, and what to do next.

Important: Some solutions require root rights or an engineering menu, and we've marked these cases with special warnings, and for most users, basic actions are enough without the risk of breaking the phone.

1. Check basic settings: flight mode, "Do not disturb" and number lock

Start with the obvious, sometimes the problem is randomly activated functions, like Do Not Disturb» (DND) It can block all incoming calls if you're configured to "Important Only" or "Nobody," and flight mode shuts down cellular communications completely, even if Wi-Fi remains active.

How to check:

• 📱 Open the notification curtain, and if you see the airplane icon, flight mode is on. Turn it off.
• 🔔 Go to Settings. → Sound and vibration → Don't disturb. Make sure the mode is off or set to "All contacts».
• 🚫 Check the blacklist: Settings → Annexes → Challenges → Room locks, maybe someone accidentally got there.
• 📶 Make sure that the network icon is displayed in the status bar (for example, 4G or 5G). If it is not, the problem is SIM-map.

If after these checks, the calls still don't pass, move to the next section. IMEI: firmware MIUI After the update, it is reset and the phone becomes “invisible” to networks.

2.Problems with SIM-Card: from bad contact to operator lock

SIM-The card is the most vulnerable link in the chain of communication, and even a tiny speck of dust between contacts can lead to the loss of the network or the inability to take a call. SIM old (released more than 5 years ago), it may wear out physically or not support modern communication standards (e.g. VoLTE).

Diagnostics and solutions:

• 🔄 Restart your phone – sometimes it restores communication with your phone. SIM. If the network does not appear after the reboot, the problem is more serious.
• 📱 Check the tray. SIM-cards: get out the card, wipe the contacts with a dry wipe (do not use alcohol!). Make sure the card is inserted correctly - the chip should be pointing down.
• 🆔 Try another one. SIM: Put the other operator's card in, and if it's a call, the problem is the first one. SIM (It may be blocked by the operator).
• 📡 Manual network selection: go to Settings → SIM-maps and mobile networks → Select the network and select the operator manually. Sometimes the automatic mode fails.

If none of the items help, check the status. SIM Maybe the number is locked for non-payment or for some other reason:

1. Call from another phone to your operator’s hotline (for example, for MTS – 0890, for Beeline – 0611).
2. Use it. USSD-command to check balance (e.g. *100# for MegaFon) if the command is not executed — SIM idle.

3.Firmware failures: MIUI, IMEI and grey phones

One of the most insidious causes is firmware damage or resetting IMEI. It often happens after that:

• Failed update MIUI (especially on custom firmware).
• Install unofficial firmware (e.g. Pixel Experience or LineageOS).

How to check for IMEI:

1. Dial on the phone keyboard *#06# - a 15-digit number (or two numbers for two) should appear. SIM).
2. If not IMEI You see Null, Unknown, or an empty field, it's thrown off.
3. Check the compliance IMEI on a sticker under the battery (if the phone is collapsible) or on a box.

Decisions:

• 🔧 Recovery IMEI Engineer Mode (requires root or special tools like Maui) META).
• 📥 Re-flashing the official MIUI via the Mi Flash Tool (instruction below).
• 🛠️ Contact the service center, if the phone is guaranteed (self-recovery) IMEI can deprive).

💡

If you bought Xiaomi in China (for example, on AliExpress), check the firmware region in Settings. → The phone. → Version. MIUI. If it says China, the phone may not support Russian frequencies. 4G. The solution is to run a global version MIUI.

For the re-flashing of the official MIUI:

1. Download the firmware for your model from en.miui.com (choose Fastboot or Recovery).
2. Use the Mi Flash Tool to install via Fastboot or TWRP for recovery.
3. After the firmware, perform a data reset (Wipe Data).

⚠️ Please note: Do not use unofficial tools (e.g., telephones, SP Flash Tool – This can lead to loss IMEI For models with a Qualcomm processor (most Xiaomi), use only the Mi Flash Tool.

Hardware malfunctions: antenna, communication module, soldered contacts

If the software methods didn't work, the problem could be the hardware.

• 📡 Damage to the antenna module (for example, after falling or getting moisture).
• 🔌 Crap of contacts on the board (often occurs after overheating or unsuccessful repairs).
• 📱 Communication module malfunction (e.g. Qualcomm Snapdragon chip) X50/X60 model 5G).
• 🔋 Battery bloating that presses on board and disrupts connection.

How to diagnose:

Self-repair of hardware malfunctions is possible only if you have experience with soldering equipment, for example, to replace the antenna contact with the Xiaomi Redmi Note 10 Pro will require:

• Disassemble the phone (risk of damage to plumes).
• Heat the fee with a hairdryer to 300°C to remove old solder.
• Sell new contact using flux and solder.

⚠️ Warning: If the phone was in a wet environment (e.g., dropped in water), do not turn it on until you dry the charge in rice or silica gel for at least 24 hours.

5. Problems with VoLTE and operator settings

VoLTE (Voice over LTE) — technology that allows you to call through 4G-net instead of obsolete 2G/3G. If it is disabled or incorrectly configured, calls may not go through, especially on modern Xiaomi (e.g. Xiaomi). 13T or POCO F5).

How to check and configure VoLTE:

1. Go to Settings. → SIM-maps and mobile networks → [Yours. SIM] → Volté challenges.
2. Make sure the VoLTE switch is on, and if it's not on, your carrier doesn't support the technology.
3. For MegaFon and Beeline may require manual activation through USSD-team: *111*467# (for MegaFon or *110*180# (Beeline).

If VoLTE is on, but calls still don't go through:

• 🔄 Switch to the switch. 3G manually: Settings → SIM-map → Preferred type of network → 3G.
• 📱 Update your operator settings: Most Xiaomi does this through Settings → SIM-map → Access point settings → Resetting network settings.
• 🔧 Install. APN manually (options can be found on your operator's website).

💡

If VoLTE calls are interrupted or interfered with, turn off the feature. Some operators (such as Tele2) have not optimized VoLTE for Chinese smartphones.

6. Operator blocking or roaming problems

Sometimes the problem isn't with the phone, it's with the operator's policy.

• Your number may be blocked for outgoing/incoming (for example, at the request of a subscriber or due to suspicious activity).
• Roaming may have restrictions on incoming calls (especially if you use a fare without roaming).
• The operator could change the network settings, and your Xiaomi didn’t automatically tweak them.

How to check:

1. Call your number from another phone, and if you hear a message like, "Subscriber temporarily unavailable," the operator has a problem.
2. Check the balance and status of services through USSD-team: *100# (balance), *111*088# (status of services for MTS).
3. If you are roaming, contact the operator and check if your fare supports incoming calls abroad.

If the operator has confirmed the lock, you can restore the number:

• Through the sales office with a passport.
• Through online support chat (for example, in the My MTS or My Beeline application).
• By phone hotline (clarify the unlock code).

7. Alternative methods of communication if calls do not pass

While you are dealing with the problem, you can use alternative communication channels:

• 💬 Voice messengers: WhatsApp, Telegram, Viber. Make sure you have mobile internet or Wi-Fi enabled.
• 📧 Email Calls: Services like Google Voice or Skype allow you to call regular numbers (paid feature).
• 📡 Wi-Fi Calling: If your Xiaomi and carrier support this feature, calls will go over Wi-Fi. → SIM-map → Wi-Fi Calling.
• 🔄 Second second SIM-If the phone supports Dual SIM, Insert a backup card of another operator.

For business users or in emergency situations, you can rent a virtual number (for example, via Zadarma or Sipnet) and redirect calls to it from your main number.

💡

If you travel frequently, set up conditional forwarding to another number via USSD-For example, for Beeline, this is 21#.

FAQ: Frequent questions about communication problems on Xiaomi